JP2004120209A - Telephone equipment - Google Patents

Abstract

A telephone device having excellent responsiveness and operability when performing an extension call between slave units.
A mobile phone includes a base unit that can communicate with a destination through a public telephone line, and a plurality of base units that can be connected to the base unit. When making an extension call with the handset 2B, the base unit 1 requests registration information of the other handset 2B from the base unit 1, and the registration information of the other handset 2B sent from the base unit 1 in response to the request is transmitted by the user. It is displayed as selection information when selecting any of the other slaves 2B.
[Selection diagram] Fig. 4

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a telephone device including a master unit and a plurality of slave units connectable to the master unit, and more particularly to control when an extension call is performed between slave units.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a so-called cordless telephone connected to a public telephone line is provided with a portable handset. Among such telephones, there is a telephone capable of making an extension call between slave units (for example, see Patent Document 1).
[0003]
[Patent Document 1]
Japanese Patent Application Laid-Open No. Hei 10-23543
When performing an extension call between slave units, when the user performs an operation for making an extension call at the calling slave unit, for example, as shown in FIG. To prompt the user to input the setting of the slave unit number on the side.
[0005]
When the user sets and inputs the number of one of the slave units on this display, the information is transmitted to the master unit. In the master unit, registration information of each slave unit is stored in advance, and the registered information is collated with the number of the slave unit set and input, and the slave unit of the other party is called. Thereby, the calling handset and the other handset can communicate via the master unit.
[0006]
However, if the number of the remote unit that has been set and entered is the number of an unregistered child unit, the base unit sends a rejection command to the calling side that it cannot be called because it is not registered. I do. As a result, the calling handset emits an error sound indicating that the call cannot be made.
[0007]
[Problems to be solved by the invention]
According to the above control, the registration of the slave unit with respect to the master unit is performed after the setting and input of the number of the slave unit of the other party and before the error sound is sounded (when the slave unit number has not been registered). After inquiring information, collating with the master unit, and receiving a rejection command from the master unit, it takes a certain amount of time, and responds after setting and inputting the number of the other handset. Was slow.
[0008]
In addition, since the display for prompting the user to input the setting of the slave unit number of the other party to be called (see FIG. 7) does not indicate the slave unit number, as described above, the slave unit number set and input is used as described above. Is an unregistered handset number, which impairs operability when making an extension call.
[0009]
The present invention has been proposed in view of the above points, and an object of the present invention is to provide a telephone device having excellent responsiveness and operability when making an extension call between slave units.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, a telephone device according to the first aspect of the present invention is a telephone device including a master unit capable of communicating with a destination through a line and a plurality of slave units connectable to the master unit. The sub-unit, when making an extension call with another sub-unit other than the sub-unit, a request unit for requesting the parent unit for registration information of the other sub-unit, and a request by the request unit. Display means for displaying the registration information of the other slave unit sent from the master unit in response to the selection information when the user selects any of the other slave units.
[0011]
According to such a telephone device, when a slave unit performs an extension call with another slave unit, first, registration information of the other slave unit is transmitted from the master unit, and the registration information is transmitted by the user to one of the other slave units. Is displayed on the display means as selection information for selecting. Therefore, after the registration information of the other slave unit is displayed, even if another unregistered slave unit is selected, for example, it is possible to immediately determine whether or not the slave unit is unregistered, and the error sound is output. Can be instantly sounded. In other words, in comparison with the conventional control in which the display for prompting the setting input of the slave unit of the other party is performed and then the master unit is inquired and an error sound is sounded based on a reject command sent from the master unit, After the registration information of the slave unit is displayed, the error sound can be instantaneously sounded, so that a telephone device with excellent responsiveness can be provided. In addition, the registration information (for example, the number) of the other handset is displayed as selection information, and the information of the other handset that has not been registered is not displayed. In addition, it is possible to prevent another unregistered slave unit from being selected by mistake, thereby improving operability.
[0012]
A telephone device according to a second aspect of the present invention is the telephone device according to the first aspect, wherein the slave unit is configured by a user to register the registration information of the other slave unit displayed by the display unit. A selection input unit capable of selecting and inputting one of the other slave units from among them, and referring to the registration information of the other slave unit sent from the master unit, the other selection unit selected and input by the selection input unit. When the slave is an unregistered slave, there is further provided a notifying unit for notifying that an error has occurred.
[0013]
According to such a telephone device, in addition to the effects of the telephone device according to claim 1, if the number of another child device selected and input by the user operation is the number of an unregistered child device, an error occurs. Can be immediately notified by voice or / and display.
[0014]
A telephone device according to a third aspect of the present invention is the telephone device according to the first or second aspect, wherein the master unit receives a request for registration information of the other slave unit from the slave unit. At this time, the individual information requesting means for requesting the individual information to the other slave, and the individual information sent from the other slave in response to the request by the individual information requesting, are transmitted to the slave. Transmitting means for performing the operation. Here, the individual information refers to information indicating a charging time of another slave unit, information indicating a communication state, and the like.
[0015]
According to such a telephone device, in addition to the effect of the telephone device according to claim 1 or 2, in addition to the registration information of the other child device, the parent device sends individual information of another child device to the child device. Can be sent to
[0016]
A telephone device according to a fourth aspect of the present invention is the telephone device according to the third aspect, wherein, when the individual information of the other child device is transmitted from the parent device, There is further provided an individual information display means for displaying individual information as selection information when the user selects any of the other slave units.
[0017]
According to such a telephone device, in addition to the effect of the telephone device according to claim 3, individual information is displayed as selection information in addition to the registration information of another child device, so that the user can use another telephone device. The conditions for selecting one of the above are substantially expanded, and a more appropriate other slave unit can be selected.
[0018]
A telephone device according to a fifth aspect of the present invention is a telephone device including a master unit capable of communicating with a destination through a line, and a plurality of slave units connectable to the master unit. A storage unit for storing registration information of a slave unit other than the slave unit, which is sent in advance from the master unit, and when performing an extension call with the other slave unit, the other unit read from the storage unit. Display means for displaying registration information of the child device as selection information when the user selects any of the other child devices.
[0019]
According to such a telephone device, since the registration information of the other handset is stored in the handset in advance, the handset can immediately read and display the registration information. Therefore, for example, when making an extension call, it is possible to omit the time for accessing the master unit to obtain the registration information of another slave unit, and to display the registration information of another slave unit more quickly. Can be done.
[0020]
A telephone device according to a sixth aspect of the present invention is the telephone device according to the fifth aspect, wherein the master unit receives a setting input to change the registration configuration of the other slave unit. And transmitting means for transmitting the registration information of the other handset to the handset.
[0021]
According to such a telephone device, in addition to the effect of the telephone device according to the fifth aspect, if the user inputs a setting to change to the registration configuration of another child device, the parent device transmits to the child device. On the other hand, the latest registration information of the other slave unit can always be sent.
[0022]
A telephone device according to a seventh aspect of the present invention is the telephone device according to the sixth aspect, wherein the slave unit receives the registration information of the other slave unit from the master unit by the transmission unit. Updating means for updating the contents stored in the storage means to the registration information sent from the master unit.
[0023]
According to such a telephone device, in addition to the effect of the telephone device according to claim 6, the child device updates the registration information of the other child device sent from the parent device, so that the other child device is always updated. You can have registration information about the machine.
[0024]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.
[0025]
FIG. 1 is a schematic block diagram showing an example of a telephone device according to the present invention. This telephone device includes a base unit 1 composed of a facsimile apparatus and a slave unit 2 that can communicate with the base unit 1 wirelessly. For convenience of explanation, in an extension call, a slave other than the calling slave 2 is referred to as “another slave 2B”.
[0026]
Although not shown, the master unit 1 is provided with, for example, various functions such as an inkjet printing function, an image reading function (scanner function), and an image communication function. For example, when transmitting facsimile data, master device 1 reads a document using an image reading function, and transmits the read document data to a destination by a communication function. When the facsimile data is received by the communication function, the contents of the facsimile data are printed on a predetermined recording sheet by using the printing function. The master unit 1 can be used as a printing device or a scanner in an independent manner while being connected to a personal computer, for example. In addition, by linking the printing function and the image reading function, it can be used as a copy machine.
[0027]
Base unit 1 includes CPU 10, NCU 11, RAM 12, modem 13, ROM 14, NVRAM (Non-Volatile RAM) 15, gate array 16, codec 17, and DMAC 18, which are interconnected by bus 19. ing. The bus 19 includes an address bus, a data bus, and a control signal line. Further, in the base unit 1, the reading unit 21, the printing unit 22, the operation unit 23, the display unit 24, the cordless control unit 25, the compander 26, and the wireless module 27 are connected to the gate array 16. A public telephone line 28 is connected to the NCU 11. An EEPROM 29 and a compander 26 are connected to the cordless control unit 25. The wireless module 27 is connected to the compander 26 and the cordless control unit 25. The base unit 1 is connected to a handset having a built-in microphone and speaker (not shown).
[0028]
The CPU 10 controls the operation of the main unit 1 as a whole. The NCU 11 performs network control by being connected to a public telephone line 28. The RAM 12 provides a work area for the CPU 10 and the like. The modem 13 modulates and demodulates voice data and facsimile data. The ROM 14 stores programs to be executed by the CPU 10 and the like. The NVRAM 15 stores data and various information.
[0029]
The gate array 16 functions as an interface between the CPU 10 and each of the units 21 to 27. The codec 17 encodes and decodes audio signals and facsimile data. The DMAC 18 mainly writes and reads data to and from the RAM 12.
[0030]
The reading unit 21 includes, for example, an image sensor, an LED light source, and a document feed motor (none of which are shown), and reads an image from a facsimile document or the like under the control of the CPU 10.
[0031]
The printing unit 22 prints an image such as a character or a figure in monochrome or color by a thermal method or the like.
[0032]
As shown in FIG. 2, the operation unit 23 includes a dial key 23A, a jog dial key 23B, and other operation keys, and transmits an input signal by a user's key operation to the CPU 10.
[0033]
The display unit 24 includes, for example, a liquid crystal display panel 24A, as shown in FIG. 2, and displays an operation state, operation guidance, and the like on the liquid crystal display panel 24A.
[0034]
The wireless module 27 includes an antenna (not shown), and exchanges audio signals and various data with each slave unit 2 using a control channel or a communication channel.
[0035]
The compander 26 separates an audio signal and a data signal sent from the slave unit 2 via the wireless module 27, and sends the audio signal to the CPU 10 and the data signal to the cordless control unit 25. Conversely, the audio signal and the data signal from the CPU 10 are sent to the wireless module 27.
[0036]
The cordless control unit 25 controls communication with the slave unit 2, and the EEPROM 29 is controlled by the cordless control unit 25, and stores, for example, the number of slave units 2, the ID number of the added slave unit 2, and the like. It is for doing.
[0037]
Slave unit 2 is temporarily installed in a room different from the room where master unit 1 is installed in a house, for example. As shown in FIG. 1, the slave unit 2 includes a control unit 41, a ROM 42, a RAM 43, an EEPROM 44, and the like, and these are connected to each other by a bus 45. The wireless module 46, the compander 47, the operation unit 48, and the display unit 49 are connected to the control unit 41. The compander 47 is connected to the wireless module 46. The speaker 51 and the microphone 52 are connected to the compander 47.
[0038]
The control unit 41 controls the overall operation of the slave unit 2. The ROM 42 stores a program to be executed by the control unit 41 and the like. The RAM 43 provides a work area for the control unit 41 and the like. The EEPROM 44 stores data and various kinds of information. In particular, the EEPROM 44 stores registration information of the other handset 2B, that is, the registered number of the other handset 2.
[0039]
The operation unit 48 includes a dial key 48A, a select key 48B, and other operation keys, as shown in FIG. 3, and transmits an input signal corresponding to a user operation to the control unit 41.
[0040]
The display unit 49 includes, for example, a liquid crystal display panel 49A, as shown in FIG. 3, and displays an operation state, operation guidance, and the like on the liquid crystal display panel 49A.
[0041]
The wireless module 46 includes an antenna (not shown), and exchanges audio signals and various data with the master unit 1 and the other slave unit 2B using a control channel and a communication channel.
[0042]
The compander 47 separates an audio signal and a data signal sent from the base unit 1 via the wireless module 46, and sends the audio signal to the speaker 51 and the data signal to the control unit 41. In addition, a voice signal from the microphone 52 and a data signal from the control unit 41 are sent to the wireless module 46.
[0043]
The speaker 51 and the microphone 52 enable communication with the master unit 1 and the other slave unit 2B.
[0044]
Next, a control operation of the telephone device in this configuration will be described with reference to a flowchart shown in FIG.
[0045]
First, the control unit 41 of the slave unit 2 determines whether or not the user performs an operation of making an extension call using the select key 48B of the operation unit 48 (S1), and performs an operation of making an extension call. Is performed (S1: YES), a connection request command is transmitted to the base unit 1 to establish a link connection with the base unit 1 (S2).
[0046]
Next, the control unit 41 determines whether or not the communication channel designation command sent from the base unit 1 has been received (S3), and if the communication channel designation command has been received (S3: YES), the base unit 1 Then, an extension call request command is transmitted (S4). The extension call request command includes the content of requesting the registration information of the other handset 2B.
[0047]
The control unit 41 determines whether or not the registration information of the other handset 2B sent in response to the extension call request command has been received (S5), and when the registration information of the other handset 2B has been received. (S5: YES), and temporarily store them in the EEPROM 44.
[0048]
Then, the registration information of the other handset 2B is read from the EEPROM 44, and as shown in FIG. 5, the registration information of the other handset 2B to be selected by the user is displayed on the liquid crystal display panel 49A of the display unit 49 (S6). ). According to FIG. 5, each of the slave units 2 having the slave unit number "1", the slave unit number "2", and the slave unit number "4" is displayed as the registered slave unit 2, and the unregistered slave unit 2 is displayed. Is hidden. The user can select an arbitrary slave unit 2 from the registration information screen of the slave unit 2.
[0049]
In this case, the location (for example, a living room, a kitchen, etc.) where each of the other slave units 2B is installed may be displayed together with the display of each of the registered slave units 2B. By doing so, it is possible to specify the location where the other handset 2B is installed and make an extension call.
[0050]
As described above, since the registration information of the other handset 2B is displayed as the selection information, the user can reliably grasp the unregistered handset by the display. Further, in this case, since the information of the other unregistered slave unit 2B is not displayed, it is possible to prevent an unregistered other slave unit 2 from being selected by mistake, thereby improving operability. Can be.
[0051]
The control unit 41 determines whether or not any other slave unit 2B has been selected (S7). If any other slave unit 2B has been selected (S7: YES), the selected other slave unit 2B has been selected. It is determined whether or not the slave 2B is an already registered slave 2 (S8). Here, if the other selected slave unit 2B is an unregistered slave unit by mistake (S8: YES), an error sound is emitted from the speaker 51 (S9), and then the selection input screen of step S6 is displayed. Return to display. At this time, an error message may be displayed on the display unit 49.
[0052]
As described above, when the handset 2 makes an extension call with another handset 2B, first, the registration information of the other handset 2B is transmitted from the base unit 1, and the registration information is transmitted to the user by the user. Is displayed on the display unit 49 as selection information for selecting. Therefore, after the registration information of the other handset 2B is displayed, even if, for example, another unregistered handset is selected, whether or not the handset is unregistered can be instantaneously determined. An error sound can be sounded. That is, compared to the conventional control in which a display prompting the setting input of the slave unit 2B of the other party is performed and then the master unit 1 is inquired and an error sound is sounded based on a rejection command sent from the master unit 1, the present application provides After the registration information of the other handset 2B is displayed, an error sound can be instantaneously sounded, so that a telephone device with excellent responsiveness can be provided.
[0053]
Also, in step S8, if the selected other handset 2B is already registered handset 2 (S8: NO), a call execution command is sent to base unit 1 (S10). Thus, a call with another slave unit 2 is started (S11).
[0054]
In the above control operation, the registration information of the child device 2 is information indicating the child device 2 registered at that time, but the charging state of another child device 2B at that time and the other child device 2B May be displayed on the display unit 49 of the child device 2 as selection information.
[0055]
That is, in the control operation shown in FIG. 4, when the extension call request command is transmitted in step S4, the extension call request command includes the content of requesting the individual information together with the registration information of the other handset 2B. Let
[0056]
The parent device 1 that has received the extension call request command transmits an individual information request command for requesting individual information to the other child device 2B, though not shown. Upon receiving the individual information request command, the other slave unit 2B transmits the individual information such as the charging state and the communication state with the master unit 1 to the master unit 1 in response to the request by the individual information request command. Send as The master 1 that has received the individual information transmits the individual information to the slave 2 together with the registration information of the other slave 2B.
[0057]
When determining in step S5 shown in FIG. 4 that the control unit 41 of the slave unit 2 has received the registration information of the other slave unit 2B sent in response to the extension call request command, It is determined whether or not the individual information of the device 2B has been received. If the individual information has been received (S5: YES), the information is temporarily stored in the EEPROM 44.
[0058]
Then, the individual information is displayed on the display unit 49 as selection information of another child device 2B based on the operation of the operation unit 48 by the user (S6). Thereby, the user can grasp the individual information of each of the other slaves 2B, and the display of the individual information substantially expands the conditions for selecting any of the other slaves 2B. Thus, the most suitable slave unit 2B can be selected at that time.
[0059]
Next, another control operation of the telephone device will be described with reference to a flowchart shown in FIG. This control operation shows a case where registration information of another child device 2B is stored in the child device 2 in advance.
[0060]
First, the control unit 41 of the slave unit 2 determines whether or not an operation to perform an extension call is performed by the select key 48B of the operation unit 48 (S21), and the operation to perform an extension call is performed. In this case (S21: YES), the registration information of each slave unit 2 stored in the EEPROM 44 in advance is read (S22).
[0061]
Based on the registration information of each slave unit 2 read from the EEPROM 44, the control unit 41 displays the registration information of the slave unit 2 to be selected on the liquid crystal display panel 49A of the display unit 49 as shown in FIG. It is displayed (S23). In this case, the information of the unregistered slave unit 2 is not displayed in the displayed registration information of the slave unit 2.
[0062]
As described above, since the registration information of the other handset 2B is stored in the handset 2 in advance, the handset 2 can immediately read out and display the registration information. Therefore, when making an extension call, it is possible to omit the time for accessing the base unit 1 to obtain the registration information of the other slave unit 2B, and to display the registration information of the other slave unit 2B more quickly. Can be done.
[0063]
Next, the control unit 41 determines whether or not the selection input of any of the slave units 2 has been operated by the user using the dial keys 48A of the operation unit 48 (S24). The following steps S25 to S28 are the same as the steps S8 to S11 shown in FIG.
[0064]
Note that the registration information of another slave 2B stored in advance in the EEPROM 44 of the slave 2 is updated when the registration configuration of the other slave 2B is changed. That is, when another child device 2B is newly added or reduced, the user performs a setting input to the parent device 1 to change the registration of another child device 2B.
[0065]
If the setting is input, master device 1 transmits the changed registration information of other slave device 2B to slave device 2. The slave unit 2 that has received the registration information from the master unit 1 rewrites the content stored in the EEPROM 44 with the registration information sent from the master unit 1. In this manner, the base unit 1 can always send the latest registration information of the other base unit 2B to the base unit 2, and the base unit 2 can send the registration information of the other base unit 1 sent from the base unit 1. By updating the registration information of 2B, it is possible to always have the latest registration information on the other slave unit 2B.
[0066]
Also, in the above-described control processing, when the individual information of the other slave 2B is to be displayed, a command to that effect is sent to the master 1 and the individual information of the other slave 2B from the master 1 is transmitted. May be displayed.
[0067]
Note that the present invention is not limited to the above embodiment. For example, the internal configurations of parent device 1 and child device 2 are not limited to the configuration shown in FIG. Further, the contents of the message displayed on the display unit 49 of the slave unit 2 are not limited to those shown in FIG.
[0068]
【The invention's effect】
As described above, according to the telephone device of the invention described in claim 1, when a slave unit performs an extension call with another slave unit, first, registration information of the other slave unit is transmitted from the master unit, These are displayed on the display means as selection information when the user selects any of the other slaves. Therefore, after the registration information of the other slave unit is displayed, even if another unregistered slave unit is selected, for example, it is possible to immediately determine whether or not the slave unit is unregistered, and the error sound is output. Can be instantly sounded. In other words, in comparison with the conventional control in which the display for prompting the setting input of the slave unit of the other party is performed and then the master unit is inquired and an error sound is sounded based on a reject command sent from the master unit, After the registration information of the slave unit is displayed, the error sound can be instantaneously sounded, so that a telephone device having excellent responsiveness can be provided. In addition, the registration information (for example, the number) of the other handset is displayed as selection information, and the information of the other handset that has not been registered is not displayed. In addition, it is possible to prevent another unregistered slave unit from being selected by mistake, thereby improving operability.
[0069]
According to the telephone device of the second aspect of the invention, in addition to the effect of the telephone device of the first aspect, the number of another child device selected and input by a user operation is not registered. If it is a number, the error can be immediately notified by voice or / and display.
[0070]
Further, according to the telephone device of the invention described in claim 3, in addition to the effect of the telephone device according to claim 1 or 2, the master unit is used in addition to the registration information of the other slave unit and other slave units. Can be sent to the slave unit.
[0071]
Furthermore, according to the telephone device of the invention described in claim 4, in addition to the effect of the telephone device described in claim 3, individual information is displayed as selection information in addition to the registration information of other slave units. Thus, the conditions for the user to select one of the other slaves are substantially expanded, and a more appropriate other slave can be selected.
[0072]
According to the telephone device of the invention described in claim 5, since the registration information of the other handset is stored in the handset in advance, the handset immediately reads out and displays the registration information. be able to. Therefore, for example, when making an extension call, it is possible to omit the time for accessing the master unit to obtain the registration information of another slave unit, and to display the registration information of another slave unit more quickly. Can be done.
[0073]
Further, according to the telephone device of the invention described in claim 6, in addition to the effect of the telephone device described in claim 5, in addition to the effect of the setting input to the parent device, the user inputs a setting change to the registration configuration of another child device. Then, the latest registration information of the other slave unit can be always sent to the slave unit.
[0074]
Further, according to the telephone device of the invention described in claim 7, in addition to the effect of the telephone device described in claim 6, the child device updates the registration information of the other child device sent from the parent device. , It is possible to always have the latest registration information on other slave units.
[Brief description of the drawings]
FIG. 1 is a schematic block configuration diagram of a telephone device according to the present invention.
FIG. 2 is a diagram showing a panel surface of a master unit.
FIG. 3 is an external view of a slave unit.
FIG. 4 is a flowchart showing a control operation of the slave unit.
FIG. 5 is a diagram illustrating an example of a display screen on a display unit of a slave unit.
FIG. 6 is a flowchart illustrating another control operation of the slave unit.
FIG. 7 is a diagram showing an example of a conventional display screen on a display unit of a slave unit.
[Explanation of symbols]
1 Facsimile machine (parent machine)
2 slave unit 2B other slave unit 25 cordless control unit 28 public telephone line 41 control unit 49 display unit (of slave unit)
49A liquid crystal display panel (for slave unit)

Claims (7)

A telephone device comprising a base unit capable of communicating with a destination through a line, and a plurality of slave units connectable to the base unit,
The slave unit is
Request means for requesting the master unit for registration information of the other slave unit when making an extension call with another slave unit other than the slave unit,
Display means for displaying registration information of the other slave unit sent from the master unit in response to a request by the request unit as selection information when a user selects one of the other slave units. A telephone device comprising: The slave unit is
A selection input unit that allows a user to select and input one of the other slave units from the registration information of the other slave unit displayed by the display unit;
A notification that refers to the registration information of the other slave unit sent from the master unit and notifies an error when the other slave unit selected and input by the selection input unit is an unregistered slave unit. The telephone device of claim 1, further comprising: means. The master unit is
When receiving a request for registration information of the other slave unit from the slave unit, an individual information requesting unit for requesting individual information to the other slave unit,
3. The telephone device according to claim 1, further comprising: a transmission unit configured to transmit, to the slave, individual information transmitted from the another slave in response to a request from the individual information request unit. The slave unit is
When the individual information of the other child device is sent from the parent device, the personal information display device further includes individual information display means for displaying the individual information as selection information when selecting one of the other child devices by a user. The telephone device according to claim 3. A telephone device comprising a base unit capable of communicating with a destination through a line, and a plurality of slave units connectable to the base unit,
The slave unit is
Storage means for storing registration information of another slave unit other than the slave unit, which is sent in advance from the master unit,
Display means for displaying, when making an extension call with the other handset, registration information of the other handset read out from the storage means as selection information when a user selects any of the other handset units A telephone device comprising: The master unit is
6. The telephone device according to claim 5, further comprising: a transmission unit configured to transmit registration information of the other slave device to the slave device when a setting input to change a registration configuration of the other slave device is made. . The slave unit is
When the registration information of the other slave unit is transmitted from the master unit by the transmission unit, further includes an update unit that updates the content stored in the storage unit to the registration information sent from the master unit. The telephone device according to claim 6.

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